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Annihilation of single-species charged particles based on Dyson gas dynamics.
Physical Review E ( IF 2.2 ) Pub Date : 2020-01-01 , DOI: 10.1103/physreve.101.012112
C E Gonzalez-Ortiz 1 , G Téllez 2
Affiliation  

We analyze the annihilation of equally charged particles based on the Brownian motion model built by Dyson for N particles with charge q interacting via the log-Coulomb potential on the unitary circle at a reduced inverse temperature β, defined as β=q^{2}/(k_{B}T). We derive an analytical approach to describe the large-t asymptotic behavior for the number density decay, which can be described as a power law, n∼t^{-ν}. For a sufficiently large β, the power-law exponent ν behaves as (β+1)^{-1}, which was corroborated through several computational simulations. For small β, in the diffusive regime, we recover the exponent of 1/2 as predicted by single-species uncharged annihilation.

中文翻译:

基于戴森气体动力学的单物种带电粒子的灭。

我们基于由戴森建立的布朗运动模型,对带负电荷q的N个粒子的布朗运动进行了hil灭,该N个粒子的电荷在降低的逆温度β上通过via圆上的log-Coulomb势相互作用,定义为β= q ^ {2} /(k_ {B} T)。我们推导了一种分析方法来描述数字密度衰减的大t渐近行为,可以将其描述为幂定律n〜t ^ {-ν}。对于一个足够大的β,幂律指数ν表现为(β+ 1)^ {-1},这通过多次计算仿真得到了证实。对于小β,在扩散状态下,我们恢复了单物种不带电an灭所预测的1/2的指数。
更新日期:2020-01-09
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